kmemleak: Do no create the clean-up thread during kmemleak_disable()

#include <linux/string.h>

#include <linux/nodemask.h>

#include <linux/mm.h>

#include <linux/workqueue.h>

#include <asm/sections.h>

#include <asm/processor.h>

 * Perform the freeing of the kmemleak internal objects after waiting for any

 * current memory scan to complete.

 */

static int kmemleak_cleanup_thread(void *arg)

static void kmemleak_do_cleanup(struct work_struct *work)

{

	struct kmemleak_object *object;

		delete_object_full(object->pointer);

	rcu_read_unlock();

	mutex_unlock(&scan_mutex);

	return 0;

}

/*

 * Start the clean-up thread.

 */

static void kmemleak_cleanup(void)

{

	struct task_struct *cleanup_thread;

	cleanup_thread = kthread_run(kmemleak_cleanup_thread, NULL,

				     "kmemleak-clean");

	if (IS_ERR(cleanup_thread))

		pr_warning("Failed to create the clean-up thread\n");

}

static DECLARE_WORK(cleanup_work, kmemleak_do_cleanup);

/*

 * Disable kmemleak. No memory allocation/freeing will be traced once this

	/* check whether it is too early for a kernel thread */

	if (atomic_read(&kmemleak_initialized))

		kmemleak_cleanup();

		schedule_work(&cleanup_work);

	pr_info("Kernel memory leak detector disabled\n");

}

		 * after setting kmemleak_initialized and we may end up with

		 * two clean-up threads but serialized by scan_mutex.

		 */

		kmemleak_cleanup();

		schedule_work(&cleanup_work);

		return -ENOMEM;

	}